.inner_c {
    width: 1200px;
    margin: 0 auto 20px;
}
h1 {
    font-size: 32px;
    line-height: 64px;
    text-align: center;
}
h2 {
    font-size: 24px;
    line-height: 24px;
}
.content {
    width: 100%;
    padding: 10px 0;
    background-color: rgba(102, 102, 102, 0.192);
    text-indent: 2em;
}
.content dl dd {
    font-size: 14px;
    color: #333;
    text-indent: 4em;
}
.btn {
    padding: 0 10px;
    background-color: skyblue;
    border-radius: 10px;
    color: #333;
}
.current_input {
    background-color: grey;
}
.normal_input {
    background-color: white;
}
.content .box {
    margin-top: 20px;
}
.content .box li {
    padding-left: 10px;
}
.content .code {
    width: 600px;
    margin-left: 260px;
}
.banner_c {
    text-indent: 0;
}
.banner {
    position: relative;
    width: 840px;
    height: 346px;
    margin: 0 auto;
    overflow: hidden;
}
.banner .banner_ul {
    position: absolute;
    left: 0;
    top: 0;
    width: 6000px;
    height: 346px;
}
.banner .banner_ul li {
    float: left;
    width: 840px;
    height: 346px;
}